public ActionResult Index(string btncreate)
{
MultiSite_GangGuanEntities Bll = new Models.MultiSite_GangGuanEntities();
int pageSize = 200; //页大小
int totalNum = Bll.Products_SellOffer.Count(); //总条数
int pageNum = totalNum % pageSize == 0 ? totalNum / pageSize : totalNum / pageSize + 1; //页数
int i = 0;
try
{
for (i = 0; i < pageNum; i++)
{
List <Products_SellOffer> list = new List <Models.Products_SellOffer>();
list = Bll.Products_SellOffer.OrderBy(o => o.Id > 0).Skip(i * pageSize).Take(pageSize).ToList();
//list = Bll.Products_SellOffer.OrderBy(o => o.Id > 0).Take(pageSize).ToList();
Thread.Sleep(1500);
CreateIndex(list);
//totalNum = totalNum - list.Count;
}
}
catch (Exception)
{
Response.Write("第+" + i + "+页出问题出错");
}
//if (totalNum == 0)
//{
// Response.Write("创建完成");
//}
Response.Write("创建完成");
return(View());
}
public void CreateTestIndex(string name)
{
MultiSite_GangGuanEntities Bll = new Models.MultiSite_GangGuanEntities();
string indexpath = HttpContext.Server.MapPath("/Indexdata");
FSDirectory directory = FSDirectory.Open(new DirectoryInfo(indexpath), new NoLockFactory());
bool isExist = IndexReader.IndexExists(directory); //是否存在索引库文件夹以及索引库特征文件
if (isExist)
{
//如果索引目录被锁定（比如索引过程中程序异常退出或另一进程在操作索引库），则解锁
//Q:存在问题 如果一个用户正在对索引库写操作 此时是上锁的 而另一个用户过来操作时 将锁解开了 于是产生冲突 --解决方法后续
if (IndexWriter.IsLocked(directory))
{
IndexWriter.Unlock(directory);
}
}
IndexWriter writer = new IndexWriter(directory, new PanGuAnalyzer(), !isExist, IndexWriter.MaxFieldLength.UNLIMITED);
Document document = new Document();
Field title = new Field("title", name, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
document.Add(title);
writer.AddDocument(document); //文档写入索引库
writer.Optimize();
writer.Close(); //会自动解锁
directory.Close(); //不要忘了Close，否则索引结果搜不到
}
public void CreateIndex(List <Products_SellOffer> prolist)
{
MultiSite_GangGuanEntities Bll = new Models.MultiSite_GangGuanEntities();
string indexpath = HttpContext.Server.MapPath("/Indexdata");
FSDirectory directory = FSDirectory.Open(new DirectoryInfo(indexpath), new NoLockFactory());
bool isExist = IndexReader.IndexExists(directory); //是否存在索引库文件夹以及索引库特征文件
if (isExist)
{
//如果索引目录被锁定（比如索引过程中程序异常退出或另一进程在操作索引库），则解锁
//Q:存在问题 如果一个用户正在对索引库写操作 此时是上锁的 而另一个用户过来操作时 将锁解开了 于是产生冲突 --解决方法后续
if (IndexWriter.IsLocked(directory))
{
IndexWriter.Unlock(directory);
}
}
IndexWriter writer = new IndexWriter(directory, new PanGuAnalyzer(), !isExist, IndexWriter.MaxFieldLength.UNLIMITED);
foreach (var pitem in prolist)
{
Document document = new Document();
Field id = new Field("id", pitem.Id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED);
Field title = new Field("title", pitem.Title, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
title.SetBoost(1.0f);
Field keywords = new Field("keywords", pitem.Keywords, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
keywords.SetBoost(0.7f);
Field detail = new Field("detail", Bll.Products_SellOffer_Detail.Where(d => d.SellOfferId == pitem.Id).FirstOrDefault().Detail, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
Field sysattr = new Field("sysattr", pitem.SysAttr, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
sysattr.SetBoost(0.4f);
Field cusattr = new Field("cusattr", pitem.CusAttr, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
cusattr.SetBoost(0.1f);
document.Add(id);
document.Add(title);
document.Add(keywords);
document.Add(detail);
document.Add(sysattr);
document.Add(cusattr);
writer.AddDocument(document); //文档写入索引库
}
writer.Optimize();
writer.Close(); //会自动解锁
directory.Close(); //不要忘了Close，否则索引结果搜不到
}
